Wrapping machine for butter and the like



April 15, 1952 H. R. COON, sR., ETAL WRAPPING MACHINE FOR BUTTER AND THE LIKE 14 Sheets-Sheet 1 Filed May 14. 1945 f 721j72fi713 Q JZZTQTO dfi 59072 Earl J m Rkb Q will] a a @m w Q w Q.v 8 m w o a Q i flug fi O l QNQ 1 8% m% W QQ WQQ \Mm 0 .QNITY IT. WWNN NwQN 6 g Q 3. QR NN April 15, 1952 H. R. COON, SR, ET AL 2,592,793

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' Z a 7" Z J April 15, 1952 H. R. cooN, SR, ETAL WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14, 1945 14 Sheets-Sheet 5 April 1952 H. R. COON, sR., ET AL 2,592,793

WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14, 1945 14 Sheets-Sheet 4 April 15, 1952 CQQN 5 ETAL 2,592,793

WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14, 1945 14'Sheets-Sheet 5 April 15,4952 CQQN, R ETAL 2,592,793

WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14. 1945 14 Sheets-Sheet 6 38 ENTOR5. Q70 @02 1 April 15, 1952 H. R. cooN, sR.. ETAL 2,592,793

WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14. 1945 14 Sheets-Sheet 7 Ap 1952 H. R. cooN, sR., ETAL 2,592,793

WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14, 1945 i4 Sheets-Sheet 8 IN V EN TORS.

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WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14, 1945 v l4 Sheets-Sheet 9 April 1952 H. R. COON, SR, ETAL WRAPPING MACHINE FOR BUTTER AND THE LIKE 14 Sheets-Sheet 10 Filed May 14. 1945 252ml 1/26 5, 8 5M 9 April 1952 H. R. cooN, sR., ETAL WRAPPING MACHINE FOR BUTTER AND THE LIKE 14 Sheets-Sheet 11 Filed May 14, 1945 IIII April 1952 H. R. cooN,- sR., ETAL 2,592,793

WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14, 1945 l4 Sheets-Sheet 12 fmlenl ors. Hzr'o ZdfZ. 650m, 6;;

BY Bard April 9 H. R. cooN, sR., ETAL 2,592,793 WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14. 1945 14 Sheets-Sheet 1a j m/6722 576. .HczmZdE @0225); By E QTZ J zap-9 April 15, 195 H. R COON, sR., ETAL 2,592,793

WRAPPING MACHINE FOR BUTTER AND THE LIKE Filed May 14, 1945 14 Sheets-Sheet l4 TEE SW 9% WWW wwwwwww QR? W Patented Apr. 15, 1952 D STATES PAT EN-T OFFICE WRAPPING MACHINEFDR BUTTERI AND THE LIKE.

Harold R. Coon, Sn, and Earl. .L REDP; Tbledm.

hio,. assignors. to Lynch". Package-- Machinery- Corp'oration, Toledo, Ohio; a corporation of Ohio Application-Mayl l. 1945; SeriaYNo; 593308 Our present invention relates to a wrapping machine for butter; oleomargarine, lard andsimilarproducts, the machine being entirely automatic in operation.

An important object is to provide printwrapping mechanism having flap folding devicesoperable in timed sequence and in a manner to efiici'ently wrapthe print ofbutter anddischarge it onto. the conveyors which conveys the prints of butter to acartonin'g mechanism.

With" these-and other: objects in view, our invention consists. in the construction, arrangement' and combination of the various: parts of our device-whereby the. objects contemplated are attained, as hereinafter more fully. set forth, pointed out inthe claim. and illustrated in the accompanying drawings, wherein:

Fig.1 is.a' perspective view of a printing, wrapping andcartoning machine for butter and the like embodying our invention and showing, the general relation ofltheparts' of. the machine, this view beingof the side of the machine; considered as the right-hand side when facing. the direction of travel of the butter therethrough';

Fig- 2v is an enlarged. longitudinal sectional view vertically through the. transmission housing of. the. machine which appearsat the" left in Fig. 1, the; bracket 2 thereadjacent indicating the extent ofFig. 2 in relation toFig. 1

Fig. 3 is a: vertical sectional, view on the. line 3'--3"of::-Fig. 2showing; details-of a-butter printer worm drive. clutch;

Fig. 4B is a. vertical sectional. viewon=the line 4.'4'0f Fig. 2'showing gear connections between various operating elements of the transmission (Fig. 2 being taken on the 1ine.2.2. of Fig.4);

Fig. 5 isa vertical sectional. view on the line 5-5 of Fig. 2 showing details of. amasterclutch for connecting the drive motor with the entire machine;

Fig. 6 is a horizontal sectional view on the line 6--6 of Fig. 4 showingtheprinter worms for feeding the butter from a hopper into, print forming cavities;

Fig. '7 is a-vertical sectional. view on the line l -l of- Fig. 6 showing a hopper feed' rol1,.the print forming mechanism and an air relief valve associated therewith Fig. 8 is an enlargedhorizontal sectionallview onthe lined-8 of Fig. 1 and shows a plan view of the right-hand half. of Fig. 7 together with adjacent portionsof the machine, Fig. 8 being drawn at twice thescale of Fig. '7;

Fig. 9. is an enlarged vertical sectional-view on theline- 99 01 I showing a. irontview of Fig. 7 and lookingat Fig. 'Tf'rom the right;

1 Claim. (Cl. 53-131.):

2 Fig; 10 is an enlarged. vertical sectional view on the line [Hi-1020f k showing. a portion of the parchment: wrapping mechanism and: the

cam shaft for" operating the same Fig; 10a. iSif a; vertical; sectional view 'onl, the li-nelM-lfld ofsEfg. 1'0 showing-aportion. of-"the print. wrapping mechaJnism,.the; mechanism here shown being for certain of the parchment folding apparatus;;

Fig: 1, showing. the wrapping. mechanism for wrapping the print with parchment-and illdl? cating the.- pathp of the-.printrthrough therwrapping; mechanism: (Fig. 8 -being5takezr entire line 8--8 of Fig. 11)

' Fig. 12- is: a side elevation. of the portionof Fig; 1 indicated-by: thegbracket l2. and showing by: dot-and-dash linesthedrive from a cam. shaft to :variouss other e1en ents-of the. maehine';

Fig; 12a is. a verticatviewshowingrsa-idgcai'n shaft in sectiomand :a cam and associated mechanism for operatingg'a certainlin'lc shown: in Fig. 12. v

Fig. 13 is a plan view of the pentiorr ofi the machineshown-in-Fig. 12; v v

Fig. 14 is--a.- vertical; sectional view-om the. line l4- -l 4"- 01 Fig. 13- showing, a cartoni'ng..:cam. and details of. the various. mechanisms driven thereby;

Fig: 15* is a vertical sectional. view on the line l5 -I5 of Fig. 14: (Fig.1 12a. being taken; on; the 1ine-l2w-l.2d-of -F'ig. 15).}- c

Fig. 1 6 is avertical' sectionalviewsiinilar t'o a portion of mg. 7 at the right side thereof; and showing; the positibmofthel butt'ei; print with relation to the parchment. at; the; beginning of the parchmentwrapping;operation;

Fi s. 137,. 1'8 and. legaret vertical. seetional'fview's awshortl distancefirrthe macnine alieadfe and showing further steps the parchment wrapping process; 7 Y

Fig.,20 is aplanview' oifportioii's of.the"intake conveyors which" receiveitn'ei wrappedfprintsv .vided with four radial extensions 88.

frame supports a parchment wrapping mechanism which will be described in detail hereinafter. Spaced from the frame I9 is a second frame Is for supporting a cartoning mechanism (not described herein).

The transmission housing I2 has attached thereto a motor 28 provided with a shaft 22 terminating in a drive pinion 24 as shown in Fig. 2. The pinion 24 meshes with a gear 26 which freely rotates on a main or drive shaft 28.

Keyed to the drive shaft 28 is a clutch disk 30 carrying a rock shaft 32 in a boss 34 thereof. The gear 26 has an annular internal clutch face 36 in which an expansible clutch ring 38 is mounted. The clutch ring 38, as shown in Fig. 5, is split, the faces of the split being shown at 48. The rock shaft 32 has a portion provided with opposite flats 42 which fit between the faces 48.

An arm 44 is secured to the rock shaft 32 for swinging it from the position of Fig. with the faces 48 vertical to the position of Fig. 2, with the faces at an angle to the vertical. A clutch cone 46 cooperates with the arm 44 for this purpose, the clutch itself being shown disengaged in Fig. 5 and engaged in Fig. 2. As shown in Fig. 4, the arm 44 has a set screw 45 for adjustment purposes.

The clutch cone 45 has an annular groove 48 in which a ring 49 is mounted having opposite studs 58 to cooperate with the forks of a clutch yoke 52. The clutch yoke 52 is carried by a control shaft 54, and this shaft may be rocked by an arm 56, a link-58 (Fig. 2-dot-and-dash lines), and a control lever 59 (see Fig. l). The control lever 59 is mounted on a rock shaft 68 which has a depending arm 62 inside the housing extension I4 to which the link 58 is pivoted. Thus the lever 59 may be used for manually controlling the complete machine as to the operation thereof by the motor 28.

The drive shaft 28 has thereon a gear 64 which meshes with a gear 66 mounted on a countershaft 68 (see Fig. 2). The countershaft 68 carries a pinion I8 which meshes with a gear I2 on a countershaft I4 (also see Fig. 4). The shaft 68 extends through a partition 16 and has a second pinion I8 thereon. The pinion I8 meshes with a gear 88 which rotates freely on a printer worm drive shaft 82.

The printer worm drive shaft has a clutch element 84 slidably and non-rotatably mounted thereon as by means of a pair of keys 86 (see Figs. 2 and 3), the clutch element 94 being prorear face of the gear 88 we provide a clutch disk 98 having radial serrations 92. A companion clutch disk 94 is provided having radial serrations 96. The disk 94 is normally held spaced from the disk 98 by a plurality of springs 98.

Slidably and rotatably mounted on the shaft 82 is a clutch engaging disk I89 connected with the disk 94 by means of four rods I82. The rods I82 pass slidably through openings I84 of a disklike clutch element I86 which surrounds the clutch element 84 and has a plurality of sockets ,I88, one for each of the projections 98. The

sockets are somewhat larger than the projections, and blocks H8 of rubber or similar material are interposed between the two for cushioning the action of the clutch.

The clutch disk I88 has an annular groove H2 in which a ring H4 is mounted, the ring havin opposite studs H6 coacting with the forks of a clutch yoke H8 pivoted on an eccentric I28.

On the The eccentric I28 is part of an adjusting shaft I22 which may be rotated and locked at two positions for the purpose of adjusting the clutch yoke H8 so that the clutch plates I88 and I86 may or may not engage for a purpose which will be hereinafter explained. The two positions are determined by a retractible pin I23 (see Fig. l) to coact selectively with two openings I25.

For effecting such throw of the clutch yoke we provide a bell crank I24 also pivoted on the eccentric I28 and carrying a roller I26. The roller I26 coacts with a cam I28 on a cam shaft I38. The cam shaft has thereon a bevel gear I32 which meshes with a bevel pinion I34. The bevel pinion I34 is mounted on the countershaft I4 and is thereby driven by the pinion l8 and the gear I2 from the shaft 68. Thus the cam I28 rotates in timed sequence with the other operating mechanisms of the machine which are driven by a coupling I38 between shaft 28 and a shaft I38 (see Fig. 2) as will hereinafter appear.

An operating connection is provided between the bell crank I24 and the clutch yoke H8 by means of an adjustable screw I8I threaded into the bell crank and having a lock nut I83 threaded thereon. The screw I8I has a head I adapted to contact with the head of a bolt I81 slidable in the yoke H8. A spring I89 is interposed between the head of the bolt I81 and the yoke to permit a certain amount of relative movement between I81 and I I8 without damaging the clutch serrations 82 and 96, as will hereinafter appear.

Other portions of the machine are driven by certain gearing shown in Fig. 4, which will now be described.

A countershaft I39 is driven through a train of gears I8, I42 and I44 from a pinion I48, the pinion being in the form of teeth out into the printer worm shaft 82. A second printer worm shaft I 38 is provided and it is driven from the shaft 82 through gears I58 and I52. The mechanism driven by the countershaft I39 will be described later.

A butter hopper I54 is provided (see Figs. 1 and 7). Within the hopper a pair of printer worms or feed screws I56 and I58 are rotatably mounted. The worms I56 and I56 rotate in semicylindrical seats I58 and I62 of the hopper I54 with their forward ends rotating in tubular portions I64 of the hopper, as shown in Fig. 7. The rear ends of the worms are suitably journaled in bearings I95, and the shafts for the worms terminate in square heads I68 (see Fig. 6). The heads I68 are received in square sockets I18 of coupling members I72, which coupling members are secured as by keying to the worm drive shafts 82 and I48. Suitable packings I'I4 are provided to prevent escape of transmission grease from the transmission housing i2 into the hopper I58. As shown in Fig. 1, the hopper may be provided with a feed chute I75 into which the butter or other material to be wrapped and cartoned may be dumped from the butter tubs or-the like.

A hopper feed mechanism is provided in the form of a drum I78 rotatable in a semi-cylindrical seat I88 (see Fig. '7). The drum I78 has radial slots I82 in each of which a feeder blade I84 is mounted for radial sliding movement. Opposite ends of the blades are provided with rollers I86 which travel in cam grooves I88. The grooves are formed in stationary cams I89 at each end of the seat I88 and are so shaped that the blades are retracted during the right-hand half of the revolution (in Fig. 7) and extended during the left-hand half of the revolution. The blades I84 thereby impinge the butter in the hopper I54 and .5 feed it downwardly toward the printer worms F58 and I58. 7 The feeder drum I18 is mounted on a shaft I 98 andthe shaft isdriven by suitable gearing mechanism in a housing I92 (see Figs. 6 and '7) 'into which housing an extension I84 of the countershaft I39 projects. The shafts I39 and I94 are connected together by a coupling T96. The gearing within the housing I92 comprises a bevel gear [98 meshing with a bevel gear 280 on a shaft 202. The bevel gear 288 hasa sprocket 2M connected by a chain 208 (see Fig; 7) with a sprocket 288 on the shaft I90. An idler sprocket 210 is mounted on an adjustable arm 212' to take up slack in the chain.

which are of a size to form the length and height of aquarter pound print of butter or the like. The print is shown in end view at 222 in Fig. 7. The butter is forced by the worms I56 and I58 into the outlet portions 2I'8 and 228, which may Y be termed molds, to thereby produce continuous slabs of butter of indefinite length. From the molds 218 and 228, however, the butter enters right and left-hand vertical molds 224 and 226 (see Figs.'7 and 8), and are sheared on and elevated through these latter molds by rams 228 and 238. The rams 228 and23'8 mold the prints to width,v and, at the same time, maintain their height by reason of top walls 232 and 234 which are best shown in 9. In Fig. 7 the rams 2'28 and2'30 and their top walls 232 and 234 are shown in the elevated position, whereas in their lowest of Fig. 9. The right-hand side is similarly con structed, and, accordingly, has similar reference numerals.

The two sets of left and right-hand screws 236 and 238 are formed on adjusting shafts 242 and 244, the shaft 232 having a coupling connection 248 with a shaft 248, and the shaft 244 having a coupling connection 253 with a shaft 252.

The shaft 248 extends downwardly through bearings 254 and has a worm gear 258 mounted thereon. The shaft 252 is geared by a pair of pinions 258 to an offset shaft 266 in order to miss the main drive shaft I38. The shaft 258 has a worm gear 262 thereon. Worms 264 and 266 mesh with the worm gears 256 and 262 and are mounted on an adjusting shaft 268. The shaft 268 extends to the exterior of the frame I6 and has a. graduated control knob 218 thereon for the purpose of rotating the shaft 268 and thereby the threaded shafts 242 and 24d, adjusting the size of each of the two butter prints 222 simultaneously.

Associated with the molds 2I8, 220, 224 and 223 are air relief valves 212 (see Fig. 7). These air relief valves have beveled edges adapted to seat on valve seats 213. The purpose of the valves is fully disclosed in the Heft, Rapp and Dority Patent No. 2,258,288, issued October '1, 1941, and, accordingly, will not be explained in this application further than to show their relationship to, an

operationin, the complete machine.

by bolts 338 to a slide 332.

There an air relief valve 212 for eachof the molds 224 and 226. These valves are similar, and, accordingly, only one will be described. The valve 212 is secured to a rock arm 214 which, in turn, is secured to a shaft 216. The shaft 216 has an arm 218 extending therefrom with which a link 288 is connected by a pin and slot connection. The link 280 is pivotally connected with an arm 282 on'a rock shaft 284 having a second arm 286. The second arm 286 has pivoted thereto the upper end of a link 288. The link 288 terminates at its lower end in'a fork'298 guided on a guide block 292 through which a cam shaft 296 extends.

A gear 298 on the cam shaft 296 meshes with a pinion 360. The pinion 388 is mounted on a cross shaft 302 which is driven through bevel gears 384-and 368 from the shaft I38. The fork 290 carries a roller 388 which travels in the groove 294' of a cam disk 295'. The link 289 has 8; slot -3III cooperating with apivot pin 312- of the arm lower ends of each of the rains 228 and 235 see Figs. 7 and 9). The links in turnarepivoted-to ashort shaft 3 I 4-; The shaft 314- is: supportedby one end of a lever 31 6 which has its otherend pivoted on an eccentric shaft 3 I8 supported by a pair of brackets 328. Thearm 3P6 carries a roller -322- adaptedto travel in a cam groove 324 formed in the gear 228 mounted on-the-sha'f t-296. The shaft 3-I8 is eccentric for adjusting the pivot by rotating the shaft and then looking it.

A horizontal ram 324 for the butter prints 222 is provided (see Figsr'l' and 8 The ram 324 has a central portion 326, whereas the ram itself (in plan view) in the form of the arms of a T, the leg of which is the portion 326. Thusthe ram will accommodate-two prints of butter. one from each of the vertical rams 228 and 2-3 8.

The portion 328 of the ram 324 is secured to a laterally extending bar 328 which is anchored. as The slide 332.1is adapted toslide on a pair of stationary guide rods 334 (see Fig. 9) supported by a bracket 336 (see Fig. 8). The slide 332 is reciprocated along the guide rods 334 by a lever338 connected thereto by a link 34!! (see Fig. 8, and. by dotted showing in Fig. 11). The lever 338 is secured to a -shaft-342 to which an arm344 is also secured, and

thearm- 344 has pivoted thereto the upper end of a link 346 The link 346 terminates in a fork 348 (see Fig. 10 whichis slida-ble on a guide block. 34aand carries a roller 358 cooperating with the groove of-a cam 352'. The earn 352 is mounted on a cam shaft 354 which is driven by a gear 355 through a pinion358 (see Fig. 9) andv apair of observing the operation of the various parts driven by the cam shaft by means of ahand Wheel 35-2having thereon a pinion 354 -As shown in'Fig..10, the pinion-364 is normally out of mesh with agear 366 secured to the cam shaft 354,: but may be pulled into mesh with it, as shown by dotted lines, for rotating the gear and thereby the camshaft.

Carried by theframe. [6 are two pairs of brackw sis 363' (mg.- 1 1 which support rollsoi tip-arch:-

ment 310, one roll for the prints from each of the molds 224 and 226. The parchment passes around suitable rollers 312 and 314 and then down between pairs of rollers 316 and 318 carried in a guide and cutter head assembly 388. As shown in Fig. 9, the rollers 316 and 318 are geared to a shaft 382 by means of gears 384, 386 and 388 (and intermediate gears, not shown). The shaft 382 is driven by a sprocket 336 and a chain 392 (see Fig. 11) from a sprocket 364. The sprocket 394 is secured to a shaft 356 which is driven by bevel gears 398 and 496 from a shaft 482. The shaft 402, as shown in Fig. 16, is driven by a bevel gear 484 in mesh with a bevel gear 495 secured to the shaft 354.

The cutter head assembly 380 includes a cutter roll 406 on the shaft 382 having a suitable cutter blade 401 thereon for cooperating with a slotted shaft 409 for cutting the parchment 310 into pieces of the proper length for Wrapping the prints of butter (see Fig. 11, dotted lines) Since the cutter forms no part of our present invention, however, it will not be described in detail.

The parchment 310, upon leaving the rollers 318, extends downwardly to the position shown in Figs. 1 and 11 in front of stationary parchment folding bars 408 and 410 to a stop finger 41 1 supported by the bar 410. The bars 408 and 410 are supported by brackets 412 on vertical stationary rods 414 (see Figs. 8 and 11). The rods, in turn, are supported in brackets 416 of the transmission housing extension 14.

Vertically movable platforms 418 having notches 418 are supported by a pair of rods 420 adjacent the bars 408 and 410. These platforms are adapted to receive the prints of butter 222 as they come from between the bars 408 and 410 and to support them in conjunction with top plates 422 supported by yokes 424. The yokes are connected to brackets 426 (see Fig. 10) which, in turn, are connected with hubs 428 clamped to the rods 420. The platforms 418 and the plates 422, as well as a second set of plates 430 (also supported by the yokes 424 in Fig. 11) are vertically movable by arranging the rods 420 so that they can be slid vertically.

To effect such vertical sliding of the rods 420 we provide rack teeth 432 out in the rods 420 adjacent their lower ends with which the gear sectors 434 are meshed. The gear sectors are mounted on a rock shaft 436 having an arm 436. A link 440 is pivoted to the arm 438 and has a yoke 442 at its lower end straddling a guide block 443 on the cam shaft 354, the arrangement being similar to the yoke 290 and its associated parts in Fig. 7. The yoke 442 carries a roller 444 coacting with a groove of a cam 446 on the shaft 354. The parts just described (418 to 446) enter into the folding operations of the parchment around the' print, as will hereinafter appear.

Stop plates 448, 450 and 452 (see Figs. 8, 11 and 17) are supported by being clamped to rods 454 carried by a cross bar 455. The cross bar 455 is stationarily mounted by being clamped at its ends to vertical stationary rods 451.

End folder plates are provided for the parchment during the wrapping of the print of butter. These, in the order of their operation, are first end fold plates 456 (Figs. 8,. 10a, and 18), second end fold plates 458 (Figs. 8, 10, 10b, 11 and 19),

third end fold plates 460 (Figs. 10, 10b, 11 and 19) and fourth and fold plates 462 (Figs. 11 and 20). The first end fold plates 456 are clamped to a rod 451. The rod, in.turn, is supported by an upright bracket 464 which is secured to the left-hand ends of a pair of horizontal slide bars 541 in Fig. 10a.

The second end fold plates 458 are clamped to a shaft 4 16 supported by a vertically slidable bar 418. The bar 418 slides in a boss 480 of the frame 16, as best shown in Fig. 101?, and also slidable in this boss is a bar 482. The bar 482 supports a shaft 484 which, in turn, supports the third end fold plates 460. For effecting vertical sliding of the bars 418 and 482 we provide brackets 486 and 488 secured thereto by bolts 489. The brackets are pivoted to the upper ends of links 490 and 492. The lower ends of the links are pivoted to levers 502 and 504 carrying rollers 506 and 508. The rollers 506 and 508 cooperate with grooves of cams 510 and 512 on the cam shaft 354 and the levers 502 and 504 are pivoted on a stationary shaft 534.

Print advancing paddles in sets of three are provided for each row of prints issuing from between the parchment folder bars 408 and 410. These are shown at 516, 518 and 520 in Figs. 10a, 11, 21 and 22, and the notches 419 of the platforms 418 are adapted to receive them at various points in the cycles of operation. Each set of three paddles 516, 518 and 520 is supported by an arm 522. The two arms 522, as shown in Fig.10, are secured to a pair of horizontal slide bars 524 which are slidable longitudinally of the machine. These bars are connected together at their forward ends by a U-shaped bracket 526 having a pair of cars 528 between which a link 530 is pivoted. The link 530 is connected to a bell crank lever 532 (see Fig. 10a) pivoted on a shaft 534 and having a link 536 terminating in a fork 538, straddling the cam shaft 354. The fork 538 carries a roller 540 coacting with the groove of a cam 542 on the shaft 354.

By referring to Fig. 10 it will be noted that the pair of bars 541 are slidable between the bars 524. The bars 541 are connected together intermediate their rear ends by a U-shaped bracket 543 which has a pair of depending ears 544 (see Fig. 1011). A link 5 16 has one end pivoted to the ears 544 and its other end pivoted to an arm 548 which is also pivoted on the stationary shaft 534. A link 555 is pivoted to the arm 548 and terminates in a fork 552 straddling the cam shaft 354. The fork carries a roller 554 which c0 operates with the groove of a earn 556 on the cam shaft 354. The first end fold plates 456 are thus operated by the bars 541, the links 545,'the lever 548, the link 5511 and the cam 556.

Conveyors are provided for the prints of butter after they leave the parchment wrapping mechanism just described. These conveyors are shown at 558 and 568 (see Figs. 12 and 13). The driving mechanism for the conveyors 558 and 560 is shown in Fig. 12 and consists of a chain 563 and sprockets within a housing 562 and a chain 564. The chain 564 connects a shaft 565 driven by the chain 563 with a carton folder cam shaft 566 journaled in the frame 18. The shaft 566 is driven through suitable bevel gears 568 and 510, a clutch mechanism 512 and step-down gears 514,

515, 516 and 511 (see Figs. 14 and 15) from a shaft 1'18. The shaft 518 (see Fig. 10) is connected through suitable bevel gears 519 and 580 with a pinion 581 in mesh with the gears 355 in a housing 585 of the frame 16. The gear 355 is secured to the cam shaft 354.

The clutch mechanism 512 of Fig. 14 is controlled through a link 513 by a manually operable clutch lever 515. The clutch lever is pivoted to a gear 8! first, the spring I09 will be compressed, thusawa e:

5' stationary bracket 5.1?! and .is located outside of the frame of .the machine .a'sshown.

.The gearing within the housing .552 .drives a shaft 582 around which the .conveyor .belt .560

extends (see Fig..l2) The conveyor belt 55 8v extends around a shaft 584 which is somewhat higher than the shaft 582. The shaft 584 is geared to the shaft 582 by intermediate gears machine cooperate'to form and wrap the butter prints.

Practical operation In the operation of our wrapping machine the rolls of parchment 319 are provided as in Fig. 1,

and the butter or other product to be formed into prints is placed in the hopper I545. The butter may be deposited inthe chute I it or placed in the hopper in any convenient manner With-the motor 26 energized the machine is ready to operate and operation is started under control of the lever 59 which engages the clutch represented by the parts 32 to 54 in Fig. 2. This results in rotating the shafts I33 and I39 and the clutch members 94 and I68.

When the lobe of the cam I23 enga es the roller I26 the bell crank I24 will be rocked clockwise for engaging the serrated face 96 of the clutch member 94 with the serrations 92*of the If the apices of the serrations engage permitting movement of the bolt I01 as caused positively by the cam until such time as the serrations engage properly and cause rotation of the butter printer worms I56 and I53.

The size of the lobe of the cam I28 is such as to rotate the printer worms the necessary amount for forcing two quarter pounds of butter into the nozzles 254 and ZIG. The eccentric I20 may be adjusted by rotation to change the pivot for the bell crank I 24 and consequently its relation to the cam and to the yoke I I8 so that the yoke will be held to the left from the position shown in Fig. 2 far enough that the clutch serrations 92 and 96 will not be engaged when it is desirable to operate the machine without operating the worms, as when cleaning or testing the machine. The clutch connection is also designed for absorbing shock by means of the rubber inserts I I shown in Fig. 3.

While the butter printer worms I56 and IE3 are in operation the feeder drum I18 of Fig. 7 is also operating. The blades I84 extend into the hopper I 1! for feeding the butter downwardly toward the worms I55 and I58 and these blades are retracted as they pass around the right half of the circle, thus withdrawing them from the butter and projecting them again when they are in position to engage the butter and force it downwardly toward the worms.

The butter which is forced from the nozzles 2 I4 and 2I5 passes through the outlets 2I8 and 223 and into the vertical passageways 224 and 228 (224 being shown in Fig. '7). At this time the ram 228 is at its lower limit of movement in the passageway 224 and the butter is thus forced between the upper end of the ram 228 and the lower face of the ram top member 232, which are shown dotted in Fig. 7. While the butter is being forced into the cavity thus formed the valve 212 is open (moved to the left from the position shown in Fig. 7) as determined by the mechanical linkage which rocks the shaft 216. This is described in detail in the Heft, Rapp and Dority .patent hereinbefore referred to, and forms no part of our present invention. Its operation will be referred to briefly, however.

The valve 212 in its open position permits air to'be exhausted ahead of the butter so that the butter can completely fill the square opening having the dotted surfaces 228 and 232 as "its lower and upper limits. Before the ram 228 starts torise the valve 272 willbepositively closed by its operating linkage, whereas 'if the butter strikes the valve 212 before it is thus "positively closed .the slotted connection at 3I03 I2 will perunit of closure of the valveunder thepressure'o the butter itself.

The ram 228 is then elevated for cutting off the quarter pound of butter and elevating'it "to the position shownat 222 in Fig. 7, where it can be engaged by the ram 324. While wehave described the operationof the ram 228 only it is obvious that the ram .230 operates in the same manner andin unison with the ram 228 so that there are two prints of butter in position for 'being engaged by the horizontal ram'324.

With a sheet ofparchment 310 inthe'position shown in Figs. 7 and '16 behind the stationary bars 408 and 4H), the ram 324 -is advanced for pushing the print of butter against theparchment and then between the bars for folding "the top and bottom of the parchment wrapper over the butter, as shown in Fig. 17. Theprint of butis resting on the platforms 4 I8. I

The platforms then move downwardly; causing the lower rear flap of the parchment to be folded upwardly by the paddle 5I6 as shown by dotted lines, following which the set of paddles 5I6, 5? and 52!] moves toward the right as to the position in Fig. 18. When reaching that position the platforms 4IB elevate from the dotted position of Fig. 17 to the position of Fig. 18, thus causing the stop plate 450 to fold the upper rear flap of the parchment, leaving only the end flaps unfolded.

As the platforms 4 I 8 move downwardly and upwardly the top plate 422 and 430 move in synchronism with them due to the interconnection between them (the brackets 426, see Fig. 10). Thus the prints of butter are confined against accidentally being lifted out of position against the force of gravity which normally tends to keep them seated on the platforms M8.

The end flaps are now folded in the following described order: The rear end flaps are folded by a forward motion of the first end fold plates 455. The second end fold plates 458 then descend from the position shown in Fig. 19, following which the platform 4 I 8 lowers again to the dotted position of Fig. 19 and the third end fold plates 360 rise from the position shown to make the third fold as shown by dotted lines and numbered 3 in this figure. The fourth end fold plates 462 then effect the folding of the last end flaps by forward motion of the print of butter in the machine and onto the conveyor 558 or 550, as the case may be, these plates being stationary and including the movable element 55I exerting slight spring pressure against the fourth flaps. Such forward motion of the print is effected by the paddle 520 as the three paddles 5I6, EIS and 520 move forwardly for advancing the next print of butter from the dotted position of Fig. 17 to a position below the space between the stop plates.

of quarter pound prints of butter.

1 l 450 and 452 so that the second print can be lifted to the Fig. 18 position.

At the upper left-hand corner of Fig. 21 the order of folding of the parchment end flaps has been indicated by the numerals 1, 2, 3 and 4. The

V cartoning device or the like.

Our machine is designed for efllcient wrapping In its construction and operating characteristics it represents an improvement over the various patents herein mentioned.

Some changes may be made in the construction and arrangement of the parts of our machine without departing from the real spirit and purpose of our invention, and it is our intention to cover by our claim such modified forms of structure or use of mechanical equivalents as may be reasonably included within their scope.

We claim as our invention:

In a machine of the character disclosed, spaced stationary bars, a ram for moving a print of butter or the like against a sheet of parchment and then moving the print and the parchment between said bars for folding the parchment across the top and bottom of the print, said bars extending rearwardly in the planes of the folded sheet as far as the trailing edges of the folded sheet, a plurality of paddles, a stop plate, means for lowering the print for folding one of the trailing edges of the parchment by its engagement with an edge of the lower of said bars, means for elevating the print for folding another trailing edge of the parchment by engagement with said step plate, end flap folders for folding the end of the parchment, and means for moving said padtiles for thereby advancing the print of butter in the machine.

HAROLD R. COON, SR.

EARL J. RAPP.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,254,895 Ferguson Jan. 29, 1918 1,481,207 Johnson Jan. 15, 1924 1,589,229 Roberts June 15, 1926 1,624,203 Aldrich et a1 Apr. 12, 1927 1,803,633 McCain May 5, 1931 1,851,457 Smith et al Mar. 29, 1932 1,881,844 Morris Oct. 11, 1932 1,889,846 Wright Dec. 6, 1932 1,955,331 Howard et a1 Apr. 17, 1934 1,971,574 Moon Aug. 28, 1934 2,019,002 Drohmann et al. Oct. 29, 1935 2,111,901 Ness Mar. 22, 1938 2,157,949 Benz May 9, 1939 2,211,638 Benz Aug. 13, 1940 2,253,211 Rapp et a1 Aug. 19, 1941 2,276,744 Smith Mar. 17, 1942 2,379,655 Russell et a1. July 3, 1945 

